pteropod


Also found in: Dictionary, Wikipedia.
Related to pteropod: sea butterfly, pteropod ooze
Pteropodclick for a larger image
Fig. 261 Pteropod . General morphology.

pteropod

or

sea butterfly

a small gastropod mollusc found in the plankton, with the foot modified into wing-like structures used for swimming. Pteropods are known as ‘sea butterflies’ because of the appearance given to them by these expansions of the foot.
Mentioned in ?
References in periodicals archive ?
Cerebral neurons underlying prey capture movements in the pteropod mollusc.
Pteropods are an important food source for salmon, herring, mackerel, and other fish in the Pacific Ocean.
Pteropods, a valuable food source to both fish and birds, are one of the few species that build their shells from aragonite in the Antarctic Ocean.
Gelatinous phytoplanktonic organisms (jellyfish, siphonophores, ctenophores, pteropod mollusks, salps [thaliaceans]) can change the ionic balance within their tissues and so regulate their buoyancy.
The reproductive cycle of the Thecosomatous pteropod Limacina retroversa in the western South Atlantic.
DA contracts the somatic posture muscles in the pteropod mollusc Clione limacina, whereas ergometrine relaxes these muscles (Salcharov and Kabotyansky, 1986).
The coastal convergence that separates the cold waters of the platform from the deep and less cold waters marks the limit of the distribution of the oceanic species, mainly copepods with circumpolar distribution and with a remarkable abundance of gelatinous species of zooplankton, such as medusas, siphonophores, salps, and sea butterflies (pteropod mollusks).
Little animals called pteropod snails, or sea butterflies, living wild in the ocean have acid damage on their shells.
Larvae of the pteropod Cavolinia inflexa exposed to aragonite undersaturation are viable but shell-less.
But Robert Byrne and his colleagues have identified regions in the north Pacific where the pteropod shells begin to dissolve at depths of only 170 meters-- well within the top 10 percent of the ocean depth--and in far shallower water than generally expected.
Modulation of swimming speed in the pteropod mollusc, Clione limacina: role of a compartmental serotonergic system.
Shell growth rates of pteropod and heteropod molluscs and aragonite production in the open ocean: implications for the marine carbonate system.